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April 21, 1964 W.'J. LUTWACK PORTFOLIO MADE OF PAPER Filed June 1, 1962United States Patent 3,129,872 PGRTFGLIO MADE OF PAPER Wilton J.Lutwack, 7 01 Seneca St., Buffalo, N.Y. Filed June 1, 1962, Ser. No.199,413 6 Claims. (Cl. 229-72) This invention relates to a portfolio forholding papers, pads and the like and more particularly to such aportfolio made of paper so as to be low in cost.

An important object of the present invention is to provide a low cost,lightweight, compact and durable portfolio particularly adapted forcommercial use.

Another important object is to provide such a portfolio which not onlyavoids the likelihood of loss of papers while being carried, but alsoavoids the danger of the contents being displaced from the pockets whenthe portfolio is opened and closed in use.

Another important object is to make the portfolio of a single printeddiecut sheet of high quality paper having high tear and a burst strengthand minimum hygroscopicity and on which can be printed school insigniaor advertisements as well as blank forms adapted for use in setting outclass schedules and other data.

Another object of the invention is to provide such a portfolio havingfour large pockets and in which two of these pockets are enclosed atthree slides so as to provide a high degree of security for the contentswhereas the other two are essetnially secured at only two sides so as tobe more readily accessible.

Another object is to provide such a portfolio in which at least themajor portion of the edge forming the mouth of each envelope faces thehinge connecting the back and front panels of the portfolio, so thatthis hinge acts as a barrier against the loss of contents from thepockets when the portfolio is closed.

Another object is to provide such a portfolio which can be made withproduction printing, laminating, diecutting, scoring, gluing, foldingand sealing equipment so as to avoid any substantial amount of handlabor in making the portfolios.

Another object is to provide such a portfolio having parts gluedtogether and in which the glue is applied to one side only of the paperfrom which the portfolio is made.

Other objects and advantages of the invention will be apparent from thefollowing description and drawings in which:

FIG. 1 is a plan view of the reverse side of a diecut paper blankshowing the score lines along which the blank is to be folded and alsoshowing the areas to which glue is applied for sealing the portfolio asa part of the fold- FIG. 2 is a plan view of a completed portfolio,viewed from the inside thereof;

FIG. 3 is an enlarged fragmentary section taken on line 3-3, FIG. 2;

FIG. 4 is an enlarged fragmentary section taken on line 44, FIG. 2.

To provide a low cost portfolio, an important feature of the inventionis that it is made from a single sheet of paper which is diecut to formthe blank illustrated in FIG. 1 and is also provided with score lines ashereinafter described to facilitate folding the blank into the form of aportfolio. The paper sheet 10 is preferably of high quality paper havinghigh tear and burst strength with minimum hygroscopicity and there canbe imprinted thereon any desired ornamentation or useful blanks or data(not shown). The blank sheet 10 has five score lines 11, 12, 13, 14, anddefining the hinged front and rear panels of the portfolio and alsoflaps which are folded and glued together in such manner as to form thefour separate pockets which feature the present invention. The

score line 11 extends throughout the center of the blank and defineswith the score lines 12, 13, 14 the front panel 16 of the portfolio.This center line 11 with the score lines 12, 13, 15 defines the rearpanel 18 of the portfolio.

The score line 12 also defines an inner pocket forming flap 19, the sideedges 20 of which form continuations of the score lines 14 and 15 andthis inner pocket forming flap having a deep center recess 21 in linewith the center score line 11 and extending from the outer end edge 22of the inner pocket forming flap 19 to a point close to but preferablyshort of the score line 12.

The width of the recess 21 is such as to permit ready access to the sideedges of this recess, which edges form the mouths of the inner pocketsof the completed portfolio and the distance between the score line 12and the outer end edge 22 of this inner pocket forming flap 19 isslightly less than the length of the cover panels 16 and 18, that is,the distance from the score line 12 to the score line 13.

The score line 13 also defines an outer pocket forming flap 25 the sideedges 26 of which form continuations of the score lines 14 and 15 andthis outer pocket forming flap having a deep center recess 28 in linewith the center score line 11 and extending from the outer edge 29 ofthe outer pocket forming flap 25 to a point close to but preferablyshort of the score line 13.

The Width of the recess 28 is preferably substantially greater than thewidth of the recess 21 and the distance between the score line 13 andthe outer end edge line 29 of the outer pocket forming flap issubstantially less than the corresponding dimension of the pocketforming flap 19.

Each score line 14, 15 also defines a narrow flap 30 which preferablyextends substantially the full length of these score lines and isprovided on the reverse side of the sheet of paper 10 with a layer 31 ofglue. Each of these narrow flaps 30 is also preferably notched from itsouter longitudinal edge, as indicated at 32, this notch having one edge33 which comes into alinement with the outer end edge 29 of the outerpocket forming flap when the portfolio is folded.

Either of the pocket forming flaps 19 or 25 can be provided with a slit35 used for the insertion of accessory equipment, such as the back of apad 36. This slit is shown as being in one side of the inner pocketforming flap 19 close to the fold line 12 and as having rounding edges38 to retard any action of the supported pad 36 or the like in sawingbeyond the end of this slit.

The blank as above described is folded into the portfolio by firstfolding the inner pocket forming flap 19 along the fold line 12 intoface-to-face relation with reverse sides of the panels 16 and 18. Theouter pocket forming flap 25 is then folded along the fold line 13 intoface-to-face relation with the inner pocket forming flap 19. The gluednarrow flaps 30 are then folded along the fold lines 14, 15 intoface-to-face relation with both the inner pocket forming flap 19 and theouter pocket forming flap 25 and the layer 31 of glue is adheredthereto.

It will be noted that in completed portfolio the inner pockets 40 formedby the inner pocket forming flap 19 have mouths extending close to andsubstantially the full length of the hinge of the portfolio, theopposite ends of these mouths being formed by the extremities of thenotches 21 and 28 of the inner and outer pocket forming flaps 19 and 25respectively. It will be noted that any papers in these pockets cannotbe lost with the portfolio folded along the hinge line 11 because thehinged por tions of the panels 16 and 18 form covers for these mouths.It will further be noted that the pockets 41 formed by the outer pocketforming flap 25 are more readily accessible and hence can be used formore casual purposes.

It will also be seen that a pad 36 or the like can have its back slippedinto the slit 35 so that the pad is retained in position, and that withthe slit 35 located in the inner pocket forming-flap 19 close to thefold line 12 the lower end of this pad can be contained within thecorresponding outer pocket 41.

It will also be seen that the corner of each other pocket 41 formed bythe edge 29 is reinforced by the notches 32 which provide a greatthickness of paper in this point.

From the 'foregoing it will be seen that a four pocket, portfolio ismade with minimum Waste of paper as will be apparent from an inspectionof the blank, FIG. 1, While at the same time having four full sizepockets, the two inner tones of which are secure in that each has threeclosed sides and its mouth close to the hinge 11, while the two outerpockets are more accessible for casual notes, and also protect the pad36 hung in the slit 35.

I claim:

1. A portfolio of the character described, comprising (A) a single sheetof paper folded to provide (a) a first rectangular panel,

(b) a second rectangular panel connected to said first rectangular panelbyt-a first fold line forming a hinge,

(B) an inner pocket forming flap forming a continuation of both of thesepanels in the direction of said hinge line and connected to said panelsby a second fold line, said inner pocket forming flap (1) having acentral recess in line with said hinge 3 line extending from the outerend edge thereof to a point close to said second fold line and (2) beingof a length from said outer end edge thereof to said second fold lineslightly less than the dimension of said panels lengthwise of their saidhinge line,

(C) an outer pocket forming flap forming a continuation of both of saidpanels in the direction opposite from said inner pocket forming flap andconnected to said panels by a third fold line, said outer pocket:Eo-rming flap (1) having a central recess in line with said hinge lineextending from the outer edge thereof to a point close to said thirdfold line and (2) being of a length from its said outer edge to saidthird fold line substantially less than the said length of said innerpocket forming flap,

(D) a narrow flap forming a continuation of that edge of each panelparallel with said hinge line and connected to said panels by additionalfold lines, and (E) a layer of glue on one face of each of said narrowflaps,

said flaps being folded so that said inner pocket forming flap is inface-to-face relation with said panels and extends substantially to saidthird fold line; said outer pocket forming flap is in face-to-facerelation with said inner pocket forming flap and extends partway to saidsecond fold line, and said narrow flaps are in face-to-face relationwith both said inner pocket forming flap and said outer pocket formingflap with said layer of glue adhered thereto thereby to provide a pairof inner pockets extend ing substantially the full extent of said panelslengthwise of said hinge line and having mouths opening toward saidhinge line and a pair of outer pockets having L-shaped mouths openingtoward said hinge line and also toward said second fold line, andwhereby the fold for said outer pocket forming flap at said third foldline forms an edge closure, integral with said sheet of paper, both forthe adjacent end of each of said inner pockets as well as thecorresponding end of each of said outer pockets, and whereby said gluednarrow flaps form edge closures, in-v tegral with said sheet of paper,for both the inner and outer pockets.

2. A portfolio as set forth in claim 1 wherein said second and thirdfold =lines intersect said hinge line whereby the ends of the mouths ofsaid inner pockets are formed by the inner ends of said recesses.

3. A portfolio as set forth in claim 1 wherein the side edges of saidpocket forming flaps form substantially linear continuations of saidadditional fold lines.

4. A portfolio as set forth in claim 1 wherein said inner pocket formingflap is provided adjacent and parallel with said second fold line with aslit adapted to receive one part of an accessory article.

5. A portfolio as set forth in claim 1 wherein each of said narrow flapsis provided with a notch having one edge in register with said outeredge of said outer pocket forming flap.

6. A portfolio as set forth in claim 1 wherein said mouth of each ofsaid inner pocket is close to and generally parailel with said hingeline.

, References Cited in the file of this patent UNITED STATES PATENTS2,318,278 Arnold a May 4, 1943 2,568,941 Benson Sept. 25, 1951

1. A PORTFOLIO OF THE CHARACTER DESCRIBED, COMPRISING (A) A SINGLE SHEETOF PAPER FOLDED TO PROVIDE (A) A FIRST RECTANGULAR PANEL, (B) A SECONDRECTANGULAR PANEL CONNECTED TO SAID FIRST RECTANGULAR PANEL BY A FIRSTFOLD LINE FORMING A HINGE, (B) AN INNER POCKET FORMING FLAP FORMING ACONTINUATION OF BOTH OF THESE PANELS IN THE DIRECTION OF SAID HINGE LINEAND CONNECTED TO SAID PANELS BY A SECOND FOLD LINE, SAID INNER POCKETFORMING FLAP (1) HAVING A CENTRAL RECESS IN LINE WITH SAID HINGE LINEEXTENDING FROM THE OUTER END EDGE THEREOF TO A POINT CLOSE TO SAIDSECOND FOLD LINE AND (2) BEING OF A LENGTH FROM SAID OUTER END EDGETHEREOF TO SAID SECOND FOLD LINE SLIGHTLY LESS THAN THE DIMENSION OFSAID PANELS LENGTHWISE OF THEIR SAID HINGE LINE, (C) AN OUTER POCKETFORMING FLAP FORMING A CONTINUATION OF BOTH OF SAID PANELS IN THEDIRECTION OPPOSITE FROM SAID INNER POCKET FORMING FLAP AND CONNECTED TOSAID PANELS BY A THIRD FOLD LINE, SAID OUTER POCKET FORMING FLAP (1)HAVING A CENTRAL RECESS IN LINE WITH SAID HINGE LINE EXTENDING FROM THEOUTER EDGE THEREOF TO A POINT CLOSE TO SAID THIRD FOLD LINE AND (2)BEING OF A LENGTH FROM ITS SAID OUTER EDGE TO SAID THIRD FOLD LINESUBSTANTIALLY LESS THAN THE SAID LENGTH OF SAID INNER POCKET FORMINGFLAP, (D) A NARROW FLAP FORMING A CONTINUATION OF THAT EDGE OF EACHPANEL PARALLEL WITH SAID HINGE LINE AND CONNECTED TO SAID PANELS BYADDITIONAL FOLD LINES, AND (E) A LAYER OF GLUE ON ONE FACE OF EACH OFSAID NARROW FLAPS, SAID FLAPS BEING FOLDED SO THAT SAID INNER POCKETFORMING FLAP IS IN FACE-TO-FACE RELATION WITH SAID PANELS AND EXTENDSSUBSTANTIALLY TO SAID THIRD FOLD LINE; SAID OUTER POCKET FORMING FLAP ISIN FACE-TO-FACE RELATION WITH SAID INNER POCKET FORMING FLAP AND EXTENDSPARTWAY TO SAID SECOND FOLD LINE, AND SAID NARROW FLAPS ARE INFACE-TO-FACE RELATION WITH BOTH SAID INNER POCKET FORMING FLAP AND SAIDOUTER POCKET FORMING FLAP WITH SAID LAYER OF GLUE ADHERED THERETOTHEREBY TO PROVIDE A PAIR OF INNER POCKETS EXTENDING SUBSTANTIALLY THEFULL EXTENT OF SAID PANELS LENGTHWISE OF SAID HINGE LINE AND HAVINGMOUTHS OPENING TOWARD SAID HINGE LINE AND A PAIR OF OUTER POCKETS HAVINGL-SHAPED MOUTHS OPENING TOWARD SAID HINGE LINE AND ALSO TOWARD SAIDSECOND FOLD LINE, AND WHEREBY THE FOLD FOR SAID OUTER POCKET FORMINGFLAP AT SAID THIRD FOLD LINE FORMS AN EDGE CLOSURE, INTEGRAL WITH SAIDSHEET OF PAPER, BOTH FOR THE ADJACENT END OF EACH OF SAID INNER POCKETSAS WELL AS THE CORRESPONDING END OF EACH OF SAID OUTER POCKETS, ANDWHEREBY SAID GLUED NARROW FLAPS FORM EDGE CLOSURES, INTEGRAL WITH SAIDSHEET OF PAPER, FOR BOTH THE INNER AND OUTER POCKETS.